# US 2019/0375607 A1 · Sheet conveyor device and image forming system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0375607 A1 - Document ID: US20190375607A1 - Status: Published application - Kind: A1 - Application number: 16/435,644 - Filed: 2019-06-10 - Published: 2019-12-12 - Earliest claimed: 2018-06-12 - Assignees: KYOCERA Document Solutions Inc. - Applicants: KYOCERA Document Solutions Inc. - Inventors: Yuta IKEDA - Web page: https://patentgrep.com/patent/US20190375607A1 ## CPC - B65H 43/00: Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable - G03G 15/6552: {Means for discharging uncollated sheet copy material, e.g. discharging rollers, exit trays} - B65H 29/125: {between two sets of rollers} - B65H 29/14: and introducing into a pile - B65H 31/02: with stationary end support against which pile accumulates - B65H 31/22: removable or interchangeable - G03G 15/6529: {Transporting (G03G15/6555 takes precedence)} - G03G 21/16: Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements - B65H 2402/10: Modular constructions, e.g. using preformed elements or profiles - B65H 2513/10: Speed - B65H 2801/27: Devices located downstream of office-type machines - G03G 21/1642: {for connecting the different parts of the apparatus} - G03G 2215/00945: Copy material feeding speed varied over the feed path - G03G 2221/1696: for auxiliary devices, e.g. add-on modules - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract A sheet conveyor device is to be attachably and detachably mounted to an external apparatus which forms an image on a sheet. The sheet conveyor device includes a judgement section, a speed determining section, and a conveyance controller. The judgement section determines which of a plurality of model groups the external apparatus belongs to based on specification information indicating specifications of the external apparatus. The speed determining section determines a conveyance speed at which the sheet is to be conveyed based on the determined model group. The conveyance controller directs conveyance of the sheet at the determined conveyance speed. ## Claims ### Claim 1 A sheet conveyor device to be attachably and detachably mounted to an external apparatus which forms an image on a sheet, the sheet conveyor device comprising: a judgement section configured to determine which of a plurality of model groups the external apparatus belongs to based on specification information indicating specifications of the external apparatus; and a speed determining section configured to determine a conveyance speed at which the sheet is to be conveyed based on the determined model group. ### Claim 2 (depends on 1) The sheet conveyor device according to claim 1, further comprising: a conveyance section configured to convey the sheet; and a conveyance controller configured to control the conveyance section to convey the sheet at the conveyance speed. ### Claim 3 (depends on 1) The sheet conveyor device according to claim 1, further comprising an information acquiring section configured to acquire the specification information, wherein the judgement section determines the model group to which the external apparatus belongs based on the acquired specification information. ### Claim 4 (depends on 3) The sheet conveyor device according to claim 3, wherein the specification information includes at least one of identification information, performance information, and linear speed information, the identification information is information for identifying the external apparatus, the performance information is information indicating a number of sheets that are printable by the external apparatus per unit time, the linear speed information is information indicating a linear speed when an image is formed in the external apparatus, the judgement section determines the model group to which the external apparatus belongs based on the identification information, the linear speed information, or the performance information, and the speed determining section determines the conveyance speed based on the determined model group. ### Claim 5 (depends on 4) The sheet conveyor device according to claim 4, wherein the judgement section determines whether the external apparatus belongs to a. high-end model group or a low-end model group based on the identification information, the linear speed information, or the performance information, and the speed determining section determines the conveyance speed to be a first speed when the external apparatus belongs to the high-end group and determines the conveyance speed to be a second speed when the external apparatus belongs to the low-end group. ### Claim 6 (depends on 3) The sheet conveyor device according to claim 3, wherein the conveyance section includes at least two pairs of conveyance rollers and at least two drive motors, and each of the drive motors drives only one pair of conveyance rollers among the conveyance rollers. ### Claim 7 (depends on 6) The sheet conveyor device according to claim 6, wherein each of the conveyance rollers is provided with a limiting mechanism which allows rotation only in a rotational direction by which the sheet is conveyed in a prescribed conveyance direction. ### Claim 8 (depends on 7) The sheet conveyor device according to claim 7, wherein the limiting mechanism includes a one-way clutch. ### Claim 9 (depends on 3) The sheet conveyor device according to claim 3, wherein the information acquiring section receives pass-through data from the external apparatus, the pass-through data indicating that the sheet has passed through a fixing section of the external apparatus, and the conveyance controller controls the conveyance section to convey the sheet at the determined conveyance speed after the pass-through data has been received. ### Claim 10 (depends on 9) The sheet conveyor device according to claim 9, wherein the information acquiring section receives classification data from the external apparatus, the classification data indicating a classification of the sheet, and the speed determining section determines the conveyance speed based on the received classification data. ### Claim 11 An image forming system comprising an image forming apparatus and a sheet conveyor device, wherein the image forming apparatus includes: an image forming section configured to form an image on a sheet; and a paper ejection section including an empty space in which the sheet with the image formed thereon is housable, the empty space is open towards an outside of the image forming apparatus, the sheet conveyor device is mounted to the paper ejection section, and the sheet conveyor device includes: a judgement section configured to determine which of a plurality of model groups the image forming apparatus belongs to based on specification information indicating specifications of the image forming apparatus; and a speed determining section configured to determine a conveyance speed at which the sheet is to be conveyed based on the determined model group.